In a certain Math class, the probabilities have been empirically determined for various numbers of

absentees on any given day. These values are shown in the table below. Find the expected number of
absentees in a given day.
Number of
absentees, x
0 1 2 3 4
Probability,
P(x)
0.18 0.26 0.29 0.23 0.04

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